1CPT

CRYSTAL STRUCTURE AND REFINEMENT OF CYTOCHROME P450-TERP AT 2.3 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.189 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure and refinement of cytochrome P450terp at 2.3 A resolution.

Hasemann, C.A.Ravichandran, K.G.Peterson, J.A.Deisenhofer, J.

(1994) J.Mol.Biol. 236: 1169-1185


  • PubMed Abstract: 
  • Cytochrome P450terp is a class I (mitochondrial/bacterial) P450 that catalyzes the hydroxylation of alpha-terpineol as part of the catabolic assimilation of this compound by a pseudomonad species. Crystals grown from the purified protein have the sym ...

    Cytochrome P450terp is a class I (mitochondrial/bacterial) P450 that catalyzes the hydroxylation of alpha-terpineol as part of the catabolic assimilation of this compound by a pseudomonad species. Crystals grown from the purified protein have the symmetry of space group P6(1)22, and cell dimensions a = b = 69.4 A, c = 456.6 A, alpha = beta = 90 degrees, gamma = 120 degrees. Diffraction data were collected at the Cornell High Energy Synchrotron Source, and the structure of P450terp was solved by a combination of molecular replacement and multiple isomorphous replacement techniques. A model of P450terp was built and refined against native data, to an R-factor of 18.9% for data with I > or = sigma(I) between 6.0 A and 2.3 A resolution. This model contains 412 of the 428 P450terp amino acid residues; the loop between helices F and G is disordered in the crystal. While the overall fold of P450terp is very similar to that of P450cam, only three-quarters of the C alpha positions can be superimposed, to a root-mean-square deviation of only 1.87 A. The mode of substrate binding by P450terp can be predicted, and probable substrate contact residues identified. The heme environment and side-chain positions in the adjacent I-helix suggest possible modes of proton delivery in the catalytic cycle of the enzyme.


    Related Citations: 
    • Cytochrome P450-Terp: Isolation and Purification of the Protein and Cloning and Sequencing of its Operon
      Peterson, J.A.,Lu, J.-Y.,Geisselsoder, J.,Graham-Lorence, S.,Carmona, C.,Witney, F.,Lorence, M.C.
      (1992) J.Biol.Chem. 267: 14193
    • Crystallization and Preliminary X-Ray Diffraction Analysis of P450-Terp and the Hemoprotein Domain of P450-Bm-3, Enzymes Belonging to Two Distinct Classes of the Cytochrome P450 Superfamily
      Boddupalli, S.S.,Hasemann, C.A.,Ravichandran, K.G.,Lu, J.-Y.,Goldsmith, E.J.,Deisenhofer, J.,Peterson, J.A.
      (1992) Proc.Natl.Acad.Sci.USA 89: 5567


    Organizational Affiliation

    Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas 75235-9050.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME P450-TERP
A
428Pseudomonas spMutation(s): 0 
Gene Names: cyp108 (terPC)
EC: 1.14.-.-
Find proteins for P33006 (Pseudomonas sp)
Go to UniProtKB:  P33006
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download SDF File 
Download CCD File 
A
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.189 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 69.440α = 90.00
b = 69.440β = 90.00
c = 456.550γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance